The Eclipse HX-Median is a six rack unit (6RU) matrix intercom system frame with slots for 2 CPU cards, 7 I/O interface cards, and 8 interface module slots. Two internal power supplies are provided. RJ45 and fiber-optic connectors are located on the rear of the chassis, connecting the CPU and interface cards to intercom devices and media such as user keypanels, interfaces, 4-wire audio equipment, wireless equipment and fiber-optic cables.